As I already wrote, you don't need to install Win 7 on the new drive just to create the EFI and the MSR partition.
You can create both with diskpart...
device manager rt click the device and select "update driver software". select "browse my computer" and browse to the extracted zip that contains the...
“The only real prison is fear, and the only real freedom is freedom from fear.” "Saving One Dog will not change the world. But surely for that one dog, The world will change forever"